Migrate nodes with Paragraph from json

My goal is to import json file into Drupal 8 using Migrate modules (migrate_plus, migrate_tools). I use Paragraph module with fields like Name (entity reference) and composition (Number-float). And in node, I have title and other fields with Paragraph reference field. I do import, sometimes the node will be generated with blank paragraph name, If I reset migrate and try to import again, db logs gives following error

Error: Unsupported operand types in Drupal\migrate\Plugin\migrate\process\SubProcess->transform() (line 204 of C:\xampp\htdocs\drupal-migration\core\modules\migrate\src\Plugin\migrate\process\SubProcess.php) #0 C:\xampp\htdocs\drupal-migration\core\modules\migrate\src\MigrateExecutable.php(394): Drupal\migrate\Plugin\migrate\process\SubProcess->transform(Array, Object(Drupal\migrate_tools\MigrateBatchExecutable), Object(Drupal\migrate\Row), 'field_ingredien...')

but I can't figure out why importing is not working. I spent lots of time to debugging.

And also node is not created if ic_ref value is empty,

{
        "lcia_id": 3,
        "name": "Freeze-dried blueberries",
        "net_weight": 1,
        "country": "United Kingdom",
        "ic_ref": ""
      }

Migration configuration for Ingredients(config/install/migrate_plus.migration.icm_config_group_json_source_node)

  item_selector: /data/ingredients/
  fields:
    -
      name: src_lcia_id
      label: 'LCIA ID'
      selector: lcia_id
    -
      name: src_name
      label: 'Ingredient Name'
      selector: name
    -
      name: src_ic_ref
      label: 'IC paragraph ID'
      selector: ic_ref
  ids:
    src_lcia_id:
      type: integer
process:
  title:
    plugin: concat
    source:
      - src_name
      - constants/TITLE_SUFFIX
  pseudo_mbe_ic_paragraph:
    plugin: migration_lookup
    migration: icm_config_group_json_source_paragraph
    source: src_ic_ref
  field_ingredient_composition:
    plugin: sub_process
    source:
      - '@pseudo_mbe_ic_paragraph'
    process:
      target_id: '0'
      target_revision_id: '1'
destination:
  plugin: 'entity:node'
  default_bundle: ingredient
migration_dependencies:
  required:
    - icm_config_group_json_source_paragraph
  optional: {  }

Migration configuration for Ingredients(config/install/migrate_plus.migration.icm_config_group_json_source_paragraph)

source:
  item_selector: /data/composition
  fields:
    -
      name: src_lcia_id
      label: 'LCIA ID'
      selector: lcia_id
    -
      name: src_name
      label: 'Ingredient Name'
      selector: name
    -
      name: src_composition
      label: 'Ingredient Composition'
      selector: composition
  ids:
    src_lcia_id:
      type: string
process:
  field_ingredient_name: src_name
  field_ingredient_composition: src_composition
destination:
  plugin: 'entity_reference_revisions:paragraph'
  default_bundle: ingredient_composition
migration_dependencies: null

JSON data

  "data": {
    "ingredients": [
      {
        "lcia_id": 1,
        "name": "Plain Oats(conventional)",
        "net_weight": 1,
        "country": "United Kingdom, Republic of Ireland",
        "ic_ref": 1
      },
      {
        "lcia_id": 2,
        "name": "Flavoured Sugar",
        "net_weight": 1,
        "country": "United Kingdom",
        "ic_ref": 2
      },
      {
        "lcia_id": 3,
        "name": "Freeze-dried blueberries",
        "net_weight": 1,
        "country": "United Kingdom",
        "ic_ref": ""
      }
    ],
    "composition": [
      {
        "lcia_id": 1,
        "name": "Sugar",
        "composition": 0.9398839137645107
      },
      {
        "lcia_id": 2,
        "name": "Yeast",
        "composition": 0.04975124378109454
      }
    ]
  }
}```